>> we have never advocate that had this is jimmy hoffa's resting place. we're strictly investigating this as a cold case homicide, and that has been our focus since the beginning. if it somehow happens to be mr. hoffa, well, great, it will end a major mystery. >> reporter: police say it will take about two hours to take a core soil sample that will be sent to a forensic anthropologist at michigan state university, and if they find signs of human remains, then they are going to dig this driveway up. >> 37 years on still looking for jimmy hoffa. once again to savannah. >> harmony and peace have been restored to the nfl followed by a week of drama over the replacement officials. the regular referees were back on the field last night to the delight of players and fans. stephanie gosk is at m & t stadium in baltimore this morning. stephanie, good morning. >> reporter: good morning, savannah. standee ovations at this stadium are reserved for the home team, the baltimore ravens, the fans crazy about their team, but last night other pros took to the field that th